"It can not be stopped with a simple parry unless the attacker wants to stop it. I've tried it numerous times with Yoda and never was I able to stop it with just one parry. Since it hits so wildly on all directions the direction you have to parry in is quite random."

That's funny, both Rache and Hoc ni (after you left and we did some minor testing) parried it. Once you parry it or attack parry it, the combo stops because of how the system works...